22 June 2004 On estimation of secret message length in LSB steganography in spatial domain
Author Affiliations +
Abstract
In this paper, we present a new method for estimating the secret message length of bit-streams embedded using the Least Significant Bit embedding (LSB) at random pixel positions. We introduce the concept of a weighted stego image and then formulate the problem of determining the unknown message length as a simple optimization problem. The methodology is further refined to obtain more stable and accurate results for a wide spectrum of natural images. One of the advantages of the new method is its modular structure and a clean mathematical derivation that enables elegant estimator accuracy analysis using statistical image models.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jessica Fridrich, Jessica Fridrich, Miroslav Goljan, Miroslav Goljan, } "On estimation of secret message length in LSB steganography in spatial domain", Proc. SPIE 5306, Security, Steganography, and Watermarking of Multimedia Contents VI, (22 June 2004); doi: 10.1117/12.521350; https://doi.org/10.1117/12.521350
PROCEEDINGS
12 PAGES


SHARE
Back to Top